Oil burner



w. woob OIL BURNER original Filed Feb. 1. '1922 2 Sheets-Sheet 1[fn/enfer www@ fiwmkmwf May w. wlooD l Re 16623 0 IL BURNER originalFiled Feb. 1. 1922 2 shuts-sheet 2 26 2,. r. 26 z f 2, y ,f ,37 ff 3a /a93@ 3 /s I" 32./ 341v 34 f2 74 MVP/#aff 1 wwwa' l lustration, to be desiA Mey '10, UNITED STAT- ES PATENT oFFIcE.

' WILLI WOOD, 0l'

origini l. 131,014, una

This invention relates to im rovements `in liquid fuel burners, havingor an. ob-

jectto provide an -oil and steam burner of the atomizer type, whereinthe fuel oil will s be preheated .and then delivered. to the Aburnermeans for admixture with that amount of steam nry for convertingIthesame into a readily combustible material, the full mixture'thenbeingdischarged 1, for burning freinl theburner means in anA punitionAof han a the feiert will be aczWeordingl'y diminishedor reduced andviceversa whenthesupply of steam needs to be replenished. f

' Otherobjects will in part obvioilsiand in rt inted out hereinafter.l ln lliiordgr that the inventionfand its mode 'of operation may be readilypersons skilledein the art, com ying illustrative drawings and in thedetailed following descri tionV based a0' thereon -set outone possiblediment of.

thisiliiman F' 1" 11V n ese wmga ig.- isas'ieeevation of the improvedburner; Fig. 2 is a vertical section through the form of, oilv vSl-strainer. ployed; F1g.j3 is atop plan view of theburner; 4e is -a'vertical transverse section taken on the Knegt-4 of Fig` 1 lcoking inthe direction in which' the arrowa'point; Fi 5 is a detail in vertical40 section showing t e means for reheating the oil supplied vto theburner; an Fig. 6 is a detail in vertical section showing the type ofoil filter employed in ,connection -with the burner. a Having moreparticularreference' to the drawings; in` connection with which likecharacters of reference willx designate corresponding rts throughout,the improved burner'may statedfor the purposes of ilgned for use inconnection with that of boiler fragmenvtally shown in the g. 1 andindicated in entiretg by the numeral .1; .a fuel feedm8 P1P omini aim,una se. man, mee nanny 1, im. num and any 1s, me. senin n. nosas.

tending therefrom control ed by suitable an .object of. the invention.su plied with suitable motive means gener i 9 is delivered to thesame'from a cy indri'cal understoodl by. have in the aca communicating,through an oil annunci, wyoma, menor. ro rnnrsc'noii srovr: cox- 1,omo,a conronanon or omo.

- on'. roam.

anus-uen m filter 3 with an oil supply tank 4 supported upon -suitablebrackets 5 at a point 1n proximity to but elevated in re t to the boiler1' and having an oil supp conduit 6 extypes of hand valves 7 and 8.

"A starting or'secondary burner 9 extends through an openin in the frontwall of the. boiler 1, having a' urner ca 10 thereon of suitable design,whereby t e oil will be caused to thorpghly mixwithya supply of .P

air also delve to the burnerfin a manner which 4will be presentlydescribed, said .burner 9 being arranged'upon the. outer endof a conduit11 extending from and supported by the lcasing of a rotary`blower112-fl6 al y indicated atv 13, the same, as shown in f the Figs;land 3, being; arranged u n a base 14 which in' turn, is adapted tofix.- edly connected Ato the particular support therefor, through themedium of bolts 15. Fuel forvthe starting or second burner heater 17arranged upon a conduit -18'y tapped from the boiler 1, whereby theheated` water therein may vflow through the g same, such flow of waterbeing regulated by j v means of hand valves 19. The freeeud of' theconduit 6 as shown in the Fig. 1 extendainto enuement with the lowerportion of the tan a eater 17, embracin the vertical portion of theconduit 18, w lHeim-outlet conduit 20 extends from the upper end -ofsaid heater and intojenagement with the upper end of van\oil fi teritank` 21; a hand ,valve 22 bei preferab y interposed in said outlet conuit 20 for an obvious purpose. Extending for a distance into the topof'the tank filter 21 is a branch conduit 23 having a suitable strainer24 arranged 'about the inner endl portion of the same, as

shown in the Fi 6, while the opposite end with the intermedia-te portionof the oonduit 11 extending from the rotary blower 12, thus rmittln vthedeliveryfof oil to said con uit 11 m whence it will be blown forwardlylthrough the conduit by reason of the air inressure therein and thusbroken up into forad'in'xture with the roper quantity of air,hereinafter more yf described.

As will be noted, the arrangement of the e combustible particles Ilburner 9 is such as to 'direct the fiame emity ted therefrom intoengagement with a cy- .lindrical retort 25, supported as at 26 at aposition in proximityto said burner and extending through the opening inthe forward wall of the boiler` 1, into the combustion chamber thereof,as clearly shown in the Fig. 1. By reason of the engagement of the flameemitted from -the burner- 9 with the lower side of the retort 25, thewaterV contained within the same will be rapidly converted into steam,such water within the retort being sup lied thereto fromva suitable`feed pipe 2 lower end of the float valve controlled regulating tank 28having an outlet conduit 29. connected to the .lower end thereof andcommunicating with. said retort, whilev a steam inlet conduit 29 istapped into the reduced upper end of said tank, as shown in the Fig. 4,this latter conduit 29 extending into engagement with a pressure gage 30which is su ported thereon for an obvious purpose. A so, a` sight gage31 may be and preferably is arranged adjacent to the outer .end wall ofthe cylindrical retort 25 and as will be understood, communicates at itsopposite ends with the samein order that the water level within theretort 25 -may be readily ascertained by. an operator.

A main burner 32 is provided and is arranged at a point adjacent thelower side of the inner portion of the cylindrical retort 25, beingdisposedso as to direct. the heating flame emitted therefrom .onto aportion,V of theretort 25 Within the combustionv chamber of the furnacehousing, whereby to permit the constant generation of steam within saidretort irrespective of whether the starting or secondary burnen'9 isemitting iam'e or not. This main burner 32 is pivotally mounted forhorizontal move- 'ment upon abracket or pedestal 33 arranged at a pointdirectly adjacent the outer side of the forward wall of the boiler 1 andcommunicates .with a branch fuel feedingv pipe 34 extendlng from the oilfilteriner tank said conduit 34 for an obvious purpose.

As means for automatically controlling the amount of steam generated inthe retort 25 by engagement of the heating flame emitted from the mainyburner 32 therewith, subsequent to the extinguishing of the heatingfiame emitted from the starting burner 9, I

communicating with the provide a pressure controlled diaphragm 36,

understood that when the pressure of steam within the retort 25 exceedsmaximum, a portion of the same will enter the diaphragm by way of theconduit 37, expand the same and impart a lateral thrust to the bracketarm by way of the free and movable outer end thereof, hence, swingingthevmain burner 32 outwardly and away from the4 retort for a distancesuiiicient to either. discontinue the application of heat to the retort25 or to accordingly diminish the same to meet with the requisites then'present.

The operation of the burner may bereviewed `as follows;

To start the improved burner, oil is admitted by way of the conduit 23`to the conduit 11 whereupon it will be mixed with an amount of airsufficient to create a combustible mixture, whereupon the .heated fuel.will be broken into small particles and discharged for ignition fromthe burner cap 10 of the starting burner 9. Because of the factthat saidburner 9l is positioned adjacent the inner and lower side of the retort25, the flame emitted therefromwill be directed into engagement withsaid retort and hence a portion of the water therein ywill be convertedinto steam. At this time, the valve 35V of the conduit34 is opened,admitting heated oil to the same for delivery to the main burner 32. Atthe same time, the valve 35 in theiconduit 34 is opened, permitting thesteam generated in the retort 25 to flow through the same into the mainburner 32 for admixture with the heated fluid fuel iiowing into thesame. The pressure of the steam introduced into the main burner 32 .willbe sufficientil to thoroughly break up,l

the fluid or liquid fuel and cause its discharge in an atomized andhighly combustible state therefrom, whereupon the same is ignited.v,With generation of an initial quantity ofvsteam in the retort 25, thesupply of fuel to the starting burner 9 may be' discontinued, thusextinguishing its heating flame.' Because of the positioning of the mainburner 32 with relation to the lretort 25, a portion of the heatingiameemitted therefrom will bel directed onto an adjacent portion of theretort 25 and hence, will carry on the generation of steam thereinsulficient to continue to `supply that quantity' of steam to the mainburner 32 for creating a highly combustible mixture. Should an excessiveamount of steam be generated in the lretort tion may continue.

expansible diaphragm 36, which in turn will be expanded and 'thus impartan outward lateral thrust to the arni 38 connected to the pivotedhorizontally movable main burner 32, therebyr moving the -free end of'said burner outwardly away from the retort 25 so as to diminish orentirely discontinue the application of the heating flame to the retort25, thus enabling the apparatus to maintain an even pressure in orderthat efficient opera- The supply of water to the retort 25, ashereinbefore stated, will be automatically controlled by means of thefloat valve regulating tank 28, so that when the level of water in theregulating tank falls below normal, the float of the valve willaccordingly drop and thus move the valve to its open position foradmitting an additional supply of water by way of the feed pipe 27 fromwhence it will be delivered through the conduit 29 to the retort.

Manifestly, the construction shown is capable of considerablemodification and such modification as is within the scope of my claims,I consider within the spirit of my invention.

Having thus described my invention, what I claim is:

1. An oil burner comprising fuelfeeding means, a main burner, a retortfor supplying steam to the main 'burner for mixture with the fuelfiowing therein, a secondary burner communicating with the vfuel feedingmeans, and means connected to said main burner for automatically varyingthe proportion of the heat of the main burner flame which is applied tothe retort.

2. An oil burner comprising fuel feeding means, a main burner,communicating with said fuel feeding means, a retort for supply- 'mgsteam to the main burner for the mixture with the oil flowing therein, asecondary burner communicating with the fuel feeding means, and pressureoperated means connected to said main burner for automatically varyingits position with respect to said retort.

3. An oil burnerlcomprising fuel feeding' secondary burner, and apressure operatedl said fuel feeding means, a retort connected to themain burner for supplying steam to the same, means -connected to saidmain burner for v automatically varying the intensity of heat a plied tothe retort therefrom, and a secon ary burner communicating with the fuelfeeding means for initially heating the retort. Y

5. In combination with a boiler, an oil burner comprising fuel feedingmeans, an oil heating tank arranged Vin proximity to and heated by saidboiler communicating with the fuel feedingmeans, a retort, a main burnerpivotally mounted for horizontal movement in proximity. to yone portionof said retort and communicating with said fuel feeding means beyond theheater, pressure operated means communicating with said retort andconnected to said main burner for automatically adjusting its positionwith relation to said retort, and a secondary burner positioned inproximity to a portion of the retort, and communicating with said fuelfeedingmeans beyond the heating means.

6. In combination with a boiler, an oil burner comprising fuel feedingmeans, a

heater supported in proximity to and heated by said boiler communicatingwith said fuel feeding means, a main`f burner extending .through the,forward wall of the burner into the combustion chamber thereofcommunieating with said heater, a retort communicat WILLIAM woon.V

ving with said main burner for supplyingl

